atom
(physics and chemistry) the smallest component of an element having the chemical properties of the element
calculate
make a mathematical calculation or computation
constructive
constructing or tending to construct or improve or promote development
consumer
a person who uses goods or services
destructive
causing destruction or much damage
electron
an elementary particle with negative charge
erosion
(geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
gravity
(physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
hypothesis
a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
kinetic
relating to the motion of material bodies and the forces associated therewith
matter
that which has mass and occupies space
molecule
(physics and chemistry) the simplest structural unit of an element or compound
neutron
an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
periodic
happening or recurring at regular intervals
table
a piece of furniture having a smooth flat top that is usually supported by one or more vertical legs
procedure
a particular course of action intended to achieve a result
proton
a stable particle with positive charge equal to the negative charge of an electron
rate
a quantity or amount or measure considered as a proportion of another quantity or amount or measure
relationship
a relation between people; (`relationship' is often used where `relation' would serve, as in `the relationship between inflation and unemployment', but the preferred usage of `relationship' is for human relations or states of relatedness)
safety
the state of being certain that adverse effects will not be caused by some agent under defined conditions
species
(biology) taxonomic group whose members can interbreed
speed
a rate (usually rapid) at which something happens
transfer
move from one place to another
velocity
distance travelled per unit time
volume
the property of something that is great in magnitude